CVE-2026-92014: Mozjs52 · Privilege escalation due to incorrect boundary conditions in the Graphics component
Affects mozjs52Source GCVE Database
Not known to be exploited · CVSS 8.8 High · fixed in 115.41 : patch mozjs52 soon.
Data as of 8 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 115.41
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSmozjs102pkg:deb/ubuntu/mozjs102?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSmozjs115pkg:deb/ubuntu/mozjs115?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSmozjs102pkg:deb/ubuntu/mozjs102?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSmozjs78pkg:deb/ubuntu/mozjs78?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSmozjs91pkg:deb/ubuntu/mozjs91?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSthunderbirdpkg:deb/ubuntu/thunderbird?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability has been fixed in Firefox ESR 115.41, Firefox ESR 140.16, and Thunderbird 140.16. Users and administrators should update to these or later versions to remediate the issue. No additional mitigation steps are indicated beyond applying the official patches.
Description
CVE-2026-92014 is a privilege escalation vulnerability in the Graphics component of mozjs52. It arises from incorrect boundary conditions, allowing an attacker to escalate privileges. The issue was fixed in Firefox ESR versions 115.41 and 140.16, as well as Thunderbird 140.16. The vulnerability has a high CVSS score of 8.8, indicating significant impact on confidentiality, integrity, and availability. Multiple specific versions of mozjs52 are affected, primarily those prior to the fixed versions. No known exploits are reported in the wild.